GB/T 3682.2-2018
ActivePlastics—Determination of the melt mass-flow rate (MFR) and melt volume-flow rate (MVR) of thermoplastics—Part 2: Method for materials sensitive to time-temperature history and/or moisture
塑料 热塑性塑料熔体质量流动速率（MFR）和熔体体积流动速率（MVR）的测定 第2部分：对时间-温度历史和（或）湿度敏感的材料的试验方法
Application Summary AI generated
This standard specifies a test method for determining the melt flow rate of thermoplastics that are sensitive to time-temperature history or moisture, such as polycarbonate or PET. It is applied in quality control and material specification testing within the plastics manufacturing and processing industries, particularly when evaluating materials that degrade or change viscosity during standard melt flow testing. The method ensures accurate and repeatable measurements by controlling sample preconditioning and test conditions to account for these sensitivities.
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Transparency note: The application summary and key sentences on this page were automatically generated by AI from the standard's original text. This content has not been human-verified and should not be used for compliance or regulatory purposes. Always refer to the official standard document from the issuing authority.